Manjam!

Hot or Not began as a rating site that allowed users to rate the attractiveness of photos submitted voluntarily by others. The site offers a matchmaking engine called 'Meet Me' and an extended profile feature called "Hotlists".

Meet open-minded couples and single with mutual desires and lifestyles. The easiest way to form a trio with people around you.

LOVOO works like this:

Grindr is the largest all male location-based mobile networktool for Android, iPhone, iPod touch, iPad and BlackBerry.

MocoSpace is the the largest chat community of Hispanics / Latinos and African Americans!

With the #1 dating app, 3 million messages sent daily, 8 million verified photos, and 35 million members worldwide you’ll enjoy meeting singles on a dating app that works hard to make dating easier for you.